Referenced on p16, The Mamluks - 1250-1517 by David Nicolle:
Armoured figures are rarely shown from the rear, but here, on an inlaid bronze pen-case made in 1304 in Syria by Ahmad al Dhaki, the way in which a lamellar jawshan cuirass opened down the back is clearly portrayed. (Louvre Mus., inc. 3621, Paris)